Step | Action | Yes | No |
|---|---|---|---|
1 | Did you perform the Lighting System Diagnostic System Check? | Go to Step 2 | Go to Diagnostic System Check - Lighting Systems in Wiring Systems. |
2 |
Are both of the headlamps on? | Go to Testing for Intermittent Conditions and Poor Connections in Wiring Systems. | Go to Step 3 |
3 | Using a test lamp connected to a known good ground, backprobe the inoperative headlamp B+ feed circuit. Does the test lamp turn on? | Go to Step 5 | Go to Step 4 |
4 | Repair a poor connection or an open in the inoperative headlamp B+ feed circuit. Refer to Circuit Testing and Wiring Repairs in Wiring Systems. Has the repair been made? | Go to Step 8 | -- |
5 | Using a test lamp, backprobe between the inoperative headlamp B+ feed circuit and the inoperative headlamp switched circuit . Does the test lamp turn on? | Go to Step 6 | Go to Step 7 |
6 | Replace the inoperative headlamp. Refer to Headlamp Assembly or Headlamp Bulb and/or Cornering, Sidemarker, Park, Turn Signal Bulb Replacement . Has the repair been made? | Go to Step 8 | -- |
7 | Repair a poor connection or an open in the left headlamp switched circuit. Refer to Circuit Testing and Wiring Repairs in Wiring Systems. Has the repair been made? | Go to Step 8 | -- |
8 | Operate the system in order to verify the repair. Did you correct the condition? | Go to Diagnostic System Check - Lighting Systems in Wiring Systems. | Go to Step 2 |
